Seal-lock foe



1. e. ENsTRo'M.

SEAL LOCK FOR BOXES.

APPLICATION HLED AUG. 16, 1918.

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SEAL LOCK FOR BOXES.

APPLICATION FILED AUGJG. I9I8.

1 ,324, 1 1 1 Patented Deo. 9, 1919.

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24 "mi" gf- ATTY.

1. G. ENSTH'M.

lSEAL LOCK FOR BOXES. APPLICATION FILED AuG.16,1918.

/NvE/v'rofw': 6 11M/17mm Y MWWWWM@ TTY Patented DeC. 9, 1919.

3 SHEETS-SHEET 3.

Y which areused for shipping or other transi CHAN GUSTAF ENSTRM, OFGOTTIENIBORGfSWEDEN.

sean-Loox non Boxes.

i Specification of Letters Patent.

Application ined Angustia, 191s. serial No. 250,201.

To all whom it mayoo'ncem:

Be it known that I, JOHAN GUsTAr EN- `s'rnM, a subject ofthe King of Sweden, re-

siding at Nordenskldsgatan 28, Gottenborg, inthe county of Gottenborg and y Bohus and' Kingdom of Sweden, have invented new `and useful Improvements j in Seal-Locks for Boxes, of'which the following is la specification. This invention refers to boxes or cases porting purposes. Themain object of this invention is to provide a boxor c'ase,.which is exceedingly safe and reliable, so that unauthorizedimproper persons cannot get at the contents of the sameeither through the cover proper or through the sides or bot- 'tom without suchvtampering being lmown.l

A further .object of the invention isfto provide abox or case of an extremely strong and durable design,'so` that it canbe reused a number of times withoutlbeing spoiled by l Vrepeated spiking or nailing.

I Arurther object of the invention is to provide a shippin'gloox or case,that can be transported .in a closed and sealed condition without need of a special key, so that thereceiver Vmay be able to uncover the box by means of the locking device proper and .nevertheless be sure, that the box Ahas not `been uncovered during thetransport by any unauthorlzedperson.4 p

' The. .improved box or case comprlses a specially designed locking device, provided,

to be vocially closed Aand sealed without need of a special key, aswell as specially designed mountings for keeping the sides, bottoms and covers rigidly. and detachably secured ltogether.` without use of spikes,

nails, screws or similar temporary applied means. y

In the accompanying drawlngs'z Figure 1 represents anelevation frontal view of the lockingdevice in a closedlstage,A

Fig. 2 a similar view, Vbut partly in section and with thelocking device ready to be withdrawn, I

Fig. 3 the/same view as in Fig. 1, but with the locking bolt removed,

4 the lockingbolt proper,

Fig; 5 a cross section through the lookin device on the line V-V in Fig. 1, Y

Fig, 6 a similar cross section on line VI*-VI in Fig. 1,

Fig. 7 a similar cross section on line VII-#VII in Fig..1, i

Fig. 8` asimilar cross section on line VIII-VIII in Fig. 1,

Fig. 9a sectional view` of the box with the cover partly opened up,

Fig. 10 a sectional view with the cover closed and the locking devicesealed,

Fig- 11 a frontal view of the locking devlcewhen sealed, i l

Fig. 12 a similar view with the locking device sealed and closed by a cover.

In the drawings the sides of the box or case areimarked with the reference figures Patented Dee.9,1919.

26 and 260 and the `cover with 27. The" c cover is on its `innersurface provided with V'mountlngs 17, adapted to coperate with rlron Vlugs 46, fastened on the sides26, so that when the cover is pushed to the left from the position shown in Fig. 9, the cover will be locked upon the box, as shown in Fig. 10. In the first mentioned. figure, the cover 27 1s `moved to theJ right, so that the mountings l17 are not engaged with the lugs 46,' and the cover can'beremoved from the box and inl Fig. l0 thecover hasbeen pushed to the Y left landthereby the mountings 47 tocoperatewith the lugs/16, so that the cover cannot be raised. Similar mountings 17 and A lugs 46 are'provided on all the sides as well as on the bottom "126 of the box, asshown in Figs. 9 and 410,.with the only difference, that the mountingsg47 are fastened inl opposite directions on `opposite sides, thus prey venting separation of the sides and bottoms from one another without unscrewing the mountings `from the corresponding parts.

On the front side 260 there is mounted a casing r1, and the cover 27 is provided on.

the inner surface near the front side 260 with an iron plate 24 Ywith prongs 25 with hooked ends 30, whichprongs are-fitted to pass through holes in the top side of the casing 1V. Bars 43 are fastenedto'the` front.

side 260 on its inner surface and are provided with prongs 28 with hooked ends 29 ntted to pass through holes in the bottom side of the casing 1. The last mentioned prongs 28 retain the casing 1 in place on the front side 260.

Into the casing 1 there are two members 31 each provided with two opposed hooked ends or projections 34 leaving a free space 134 between the members 31. Into lsaid spaces 134 there is interposed a member 32 serving as a lock bolt, which member is j portionsl 33 are provided each with lugs 3T of a larger width than the gap 131 between the opposing ends 34 oi'one and the same member 31, so, that, when the member 32 is moved to the lett, as illustrated inl Fig. 1, with the lugs 35 positioned in the spaces 134, the hooked ends 34 prevent the member 32 from beingremoved laterally out of the casing. The narrow end portions 33 are ot somewhat less width than the spaces 131, so that the member 32 can be laterally introduced `into or withdrawn from the spaces 134, when'movedto the right asA shown in Fig. 2. When in place in the spaces 134, either in the right hand end position as in Fig. 2 or Pin 'the left hand end position as in Fig. 1, .the end portions 33 engage the hooked ends 29 on theirupper side and the hooked ends v30 on their down side, so that the cover 27 cannot be raised -from its position on the top edges of the sides 26, 260. As soonv as the member 32 is moved to the lett as in Fig 1 with the cover 27 in the closed position according to Fig. 10, the

lugs 35 coperate with the hooked ends 34 and prevent the cover 27 from being released from the lugs 46 by moving laterally to the right, as shown` in Fig. 9. Thus the cover 27 will be securely kept in place on the box, when the locking 'bolt member 32 is in its properposition according to Fig. 1.

1 -The 'casing 1 further is provided 4with an interior cover 12 hinged on pins 121 and provided with lug 20, which, when such .cover is closed, as in Fig. 5, coperateswith the aperture 36 in the member 32 when this is in the right hand, locking position as in Fig. 1 and acts to retain said member 32 in this position. This positionwill be maintained irrespective ot the rough handling to which a box is usually subjected during transit, because the border 37 of the aperture 36 coperates with the said prong 20.

In they projecting ends 34 there are provided holes 44, through which acord 45 can be thrust and sealed by a lead or seal150, so that the card 45 cannot be removed withontV breaking the seal, and consequently any unauthorized entrance into the box will be detected. For this purpose the holes 44 are 4madeso near the outer ends of the projections 34that they are to be found on the l'outside of the cover 12, when the latter is closed, andaccordingly said cover cannot be opened and the locking bolt member 32 reached without iirst removing the seal 150. An Vouter cover 13 closes thecasing 1 and protects the `seal 150 Afrom unintentional damage. The outer cover 13 is provided with a tongue 38 with a hole 39, which registers witha'holein atongue 40 on the casing 1, when the cover 13 isclosed, and through these two coperating holes there can be thrust a small wire 41 twisted to a loop, in order to retain the outer cover in closed position.

I do not limit myself to the special arrangement herein shown whereinthe casing 1 is attached to thebox side 260 and thereooperating parts in the cover 27, but I desire to protectalso the natural modification ot placing the casing 1 in the cover 27 and the coperating parts in the box side, as this modification will bring about the same result, thouglifit may be deemed as ,somewhat less practical in ordinary use.

Having thus described my said invention 3. A Vlock as embodied in claimv 2,said

locking means being hinged and movable vat right angles to said members. l 4. A lock of the class described compris a casing on the box,hooked members on the cover 1and extending into the casing, hook members in said casing reversely disposed with-relation to the memberson thecover and coacting therewith to form a guide-way, a locking bolt movable in saidgguide-way, said bolt being insertiblelaterally in said casing and capable ofoccupying a releasing and a `locking position and means inthe casing for locking said bolt against lateral `displacement when inthe locking position. 5. A lock as embodied in claim 4, :and Vprongs formed onf-the bolt, said means comprising projections which coact with said prongs. y

6. VA lock as embodied in -claim 4 fand means for locking the sliding bolt inthe locking position.

.j V7. A lock of the class described comprising, in combination with a box and its cover, Y

able member within the casing for locking In testimony whereof I have affixed my the members against lateral displacement, signature in presence of two Witnesses.

means for looking said slidable member i against movement, removable means for T01-IAN GUSTAF ENSTROM' `locking the last mentioned means, and a seal Witnesses: Y for the removable means to prevent removal ALEX. FERGUsoN,

thereof Without detection. SIGURD CARLSGN. 

